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Turbine flowmeter

 Turbine flowmeter

Jinhu Yijia Instrument Co., Ltd YJLWGY series Turbine flowmeter It is composed of turbine flow sensor and display instrument. It is manufactured by our factory with advanced foreign technology. It is one of the most ideal flow meters for liquid measurement. Turbine flowmeter It has the characteristics of simple structure, high precision, convenient installation and maintenance. It is suitable for measuring stainless steel in closed pipe 1Cr18Ni9Ti 2Cr13 And corundum Al2O3 Cemented carbide is not corrosive and has no impurity such as fiber and particle. If it is used together with the display instrument with special functions, it can be used for automatic quantitative control and over alarm.

 

Yjlwgy series Turbine flowmeter Application range:

Turbine flowmeter At present, it is widely used in petroleum, chemical, metallurgy, water supply, papermaking, environmental protection, food and other industries.

 

Yjlwgy series Turbine flowmeter Measurement principle:
 Measuring principle of turbine flowmeter


The fluid flows through the sensor housing. Because the blade of the impeller has a certain angle with the flow direction, the blade has a rotational moment due to the impulse of the fluid. After overcoming the friction torque and fluid resistance, the blade rotates. After the moment is balanced, the speed is stable. Under certain conditions, the speed is proportional to the flow rate. Because the blade has magnetic conductivity, it is in the signal detector (composed of permanent magnet steel and coil) )In the magnetic field, the rotating blade cuts the magnetic line of force, which changes the magnetic flux of the coil periodically, so that the electric pulse signal is induced at both ends of the coil. The signal is amplified and shaped by the amplifier to form a continuous rectangular pulse wave with a certain amplitude, which can be transmitted to the display instrument to display the instantaneous flow rate and cumulative measurement of the fluid. In a certain range of flow rate, pulse frequency f And the instantaneous flow rate of the fluid flowing through the sensor Q The flow equation is as follows: Q=3600×f/k;
Where:
f——
Pulse frequency [Hz]
k——
Instrument factor of sensor [1/m3] , given by the check list. If so [1/L] Unit
Q——
Instantaneous flow rate of fluid (under working condition) [m3/h]
3600——
Conversion factor.
The instrument coefficient of each sensor shall be filled in the verification certificate by the manufacturer, k When the value is set into the matching display instrument, the instantaneous flow and accumulated total amount can be displayed.

 

Yjlwgy series Turbine flowmeter Product features:

1. The sensor is thrust type of cemented carbide bearing, which not only ensures the accuracy, but also improves the wear resistance.
two
The structure is simple, firm and easy to disassemble.
three
Wide measuring range and low flow rate.
four
Small pressure loss, good repeatability and high accuracy.
five
It has high anti electromagnetic interference and anti vibration ability.

 

Wgyjly series Turbine flowmeter Technical parameters:

1. Nominal diameter:( four two hundred mm
two
Medium temperature:( -20 eighty )℃、( -20 one hundred and twenty )℃
three
Ambient temperature:( -20 fifty-five )℃
four
Accuracy: ±0.2% ±0.5% ±1
five
Detector signal transmission line system: three wire voltage pulse (three core shielded cable)
six
Power supply: voltage: 12V±0.144V, electric current: ≤10mA
seven
Output voltage amplitude: high level ≥8V , low level ≤0.8V
eight
Transmission distance: the distance between the sensor and the display instrument can reach two hundred and fifty rice
nine
On site display power supply: 3V (powered by lithium battery, it can be used continuously three Year)
ten
Display mode: liquid crystal display instantaneous flow and cumulative flow
eleven
On site display with signal output power supply: 24V four 20mA Two wire current output, remote transmission distance five hundred Rice.


Yjlwgy series Turbine flowmeter Flow range:

Gas

Instrument diameter

code

Standard range

code

Extended range

DN25  1"

S

2.5-25   m3/h

W

4-40   m3/h

DN40   1.5"

S

5-50   m3/h

W

6-60   m3/h

DN50   2"

S1

6-65   m3/h

W1

5-70   m3/h

S2

10-100   m3/h

W2

8-100   m3/h

DN80   3"

S1

13-250   m3/h

W1

10-160   m3/h

S2

20-400   m3/h

W2

DN100 4"

S1

20-400   m3/h

W1

13-250   m3/h

S2

32-650   m3/h

W2

DN150 6"

S1

32-650   m3/h

W1

80-1600   m3/h

S2

50-1000   m3/h

W2

DN200 8"

S1

80-1600   m3/h

W1

50-1000   m3/h

S2

130-2500 m3/h

W2

DN 250 10"

S1

130-2500 m3/h

W1

80-1600 m3/h

S2

200-4000 m3/h

W2

DN 300 12"

S

200-4000 m3/h

W1

130-2500 m3/h

liquid

 Liquid turbine flow range

 

Yjlwgy series Turbine flowmeter Product selection:

 

project

code

explain

YJLWGY

 

Turbine flowmeter

Sensor type

Y

 

Liquid turbine flowmeter

Q

 

Gas turbine flowmeter

Instrument diameter

mm

 

four

 

Diameter DN4mm

six

 

Diameter DN6mm

 

two hundred

 

Diameter DN200mm

Instrument material

 

two

 

carbon steel

four

 

three hundred and four stainless steel

six

 

three hundred and sixteen stainless steel

Connection mode

 

one

 

Threaded connection (max DN65

two

 

Flange connection

three

 

Clamp type quick installation (sanitary type)

Power supply mode

 

one

 

24V DC , output four 20mA

two

 

Battery powered, no output

Explosion proof requirements

 

B

Explosion proof type

1. When using, the liquid to be tested should be kept clean and free of impurities such as fibers and particles.
two
When the sensor is in use, the sensor should be slowly filled with liquid, and then open the outlet valve (the valve should be installed at the back end of the flowmeter). It is strictly forbidden to be impacted by high-speed fluid when the sensor is in the state of no liquid.
three
The maintenance cycle of the sensor is generally half a year. During maintenance and cleaning, please pay attention not to damage the parts in the measuring chamber, especially the impeller. Please pay attention to the position relationship between guide part and impeller during assembly.
four
When the sensor is not in use, the internal liquid should be cleaned, and the two ends of the sensor should be equipped with protective cover to prevent dust and dirt from entering, and then the sensor should be stored in a dry place. (this is very important)
five
The matched filter should be cleaned regularly, and the liquid inside should be cleaned when it is not in use. The same as the sensor, the dust cover should be added and stored in a dry place.
six
The transmission cable of the sensor can be laid overhead or buried (iron pipe should be covered when buried)
seven
Before installing the sensor, connect the wire with the display instrument or oscilloscope, connect the power supply, blow the impeller with mouth or manually, and make it rotate quickly to observe whether there is display. When there is display, install the sensor. If there is no display, check the relevant parts and remove the fault.

 Installation mode of turbine flowmeter

Yjlwgy series Turbine flowmeter Order notice:

Please provide the following parameters when ordering:

1. Medium: name, composition, state, conductivity or conductivity
2. Maximum, normal and minimum operating temperature
3. Maximum, normal and minimum working pressure
4. Inside and outside diameter of pipeline, minimum, normal and maximum flow
5. Corrosive, abrasive, negative pressure
6. Installation requirements and environment: integrated or split, signal output, communication mode, power supply
7. Installation environment: protection level and explosion-proof requirements

 

Yjlwgy type Turbine flowmeter Quality commitment:

Jinhu Yijia Instrument Co., Ltd. is mainly engaged in electromagnetic flowmeter, vortex flowmeter, orifice flowmeter, magnetic flap level gauge, glass plate level gauge and other products, and provides a one-year warranty for all products. In case of product quality problems (excluding wearing parts or accessories) within one year, they shall be repaired free of charge, and technical support shall be provided free of charge.

Consultation hotline 0517-86936880 15358661880

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